1 // Check that we can get a profile from a single-threaded application, on 2 // demand through the XRay logging implementation API. 3 // 4 // FIXME: Make -fxray-modes=xray-profiling part of the default? 5 // RUN: %clangxx_xray -std=c++11 %s -o %t -fxray-modes=xray-profiling 6 // RUN: rm -f xray-log.profiling-multi-* 7 // RUN: XRAY_OPTIONS=verbosity=1 \ 8 // RUN: XRAY_PROFILING_OPTIONS=no_flush=1 %run %t 9 // RUN: XRAY_OPTIONS=verbosity=1 %run %t 10 // RUN: PROFILES=`ls xray-log.profiling-multi-* | wc -l` 11 // RUN: [ $PROFILES -eq 1 ] 12 // RUN: rm -f xray-log.profiling-multi-* 13 // 14 // REQUIRES: built-in-llvm-tree 15 16 #include "xray/xray_interface.h" 17 #include "xray/xray_log_interface.h" 18 #include <cassert> 19 #include <cstdio> 20 #include <string> 21 #include <thread> 22 f2()23[[clang::xray_always_instrument]] void f2() { return; } f1()24[[clang::xray_always_instrument]] void f1() { f2(); } f0()25[[clang::xray_always_instrument]] void f0() { f1(); } 26 27 using namespace std; 28 29 volatile int buffer_counter = 0; 30 process_buffer(const char *,XRayBuffer)31[[clang::xray_never_instrument]] void process_buffer(const char *, XRayBuffer) { 32 // FIXME: Actually assert the contents of the buffer. 33 ++buffer_counter; 34 } 35 main(int,char **)36[[clang::xray_always_instrument]] int main(int, char **) { 37 assert(__xray_log_select_mode("xray-profiling") == 38 XRayLogRegisterStatus::XRAY_REGISTRATION_OK); 39 assert(__xray_log_get_current_mode() != nullptr); 40 std::string current_mode = __xray_log_get_current_mode(); 41 assert(current_mode == "xray-profiling"); 42 assert(__xray_patch() == XRayPatchingStatus::SUCCESS); 43 assert(__xray_log_init_mode("xray-profiling", "") == 44 XRayLogInitStatus::XRAY_LOG_INITIALIZED); 45 std::thread t0([] { f0(); }); 46 std::thread t1([] { f0(); }); 47 f0(); 48 t0.join(); 49 t1.join(); 50 assert(__xray_log_finalize() == XRayLogInitStatus::XRAY_LOG_FINALIZED); 51 assert(__xray_log_process_buffers(process_buffer) == 52 XRayLogFlushStatus::XRAY_LOG_FLUSHED); 53 // We're running three threads, so we expect four buffers (including the file 54 // header buffer). 55 assert(buffer_counter == 4); 56 assert(__xray_log_flushLog() == XRayLogFlushStatus::XRAY_LOG_FLUSHED); 57 } 58